原文链接：https://my.oschina.net/zyboy/blog/617422

1.地理编码
给定一个名字(北京)，获得给定名字对应的位置(经纬度)

2反地理编码
给定义个位置(经纬度)，获得这个位置对应的详细信息(国家/省/街道/楼)

#import "ViewController.h"
#import <CoreLocation/CoreLocation.h>

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

}

- (IBAction)clickGeoCoder:(id)sender {
    NSString *cityName = @"北京";
    //1.创建CLGeocoder对象
    CLGeocoder *geoCoder = [CLGeocoder new];

    //2.调用地理编码的方法
    [geoCoder geocodeAddressString:cityName completionHandler:^(NSArray *placemarks, NSError *error) {
        //placemarks数组中的每一项的类型CLPlacemark
        if (error == nil) {
            for (CLPlacemark *placemark in placemarks) {
                NSLog(@"longitued:%f; latitude:%f; addressDic:%@", placemark.location.coordinate.longitude, placemark.location.coordinate.latitude,placemark.addressDictionary);
            }
        }
    }];

}
- (IBAction)clickReverseGeoCoder:(id)sender {
    //经纬度CLLocation
    CLLocation *location = [[CLLocation alloc] initWithLatitude:39.904989 longitude:116.405285];

    //创建CLGeocoder对象
    CLGeocoder *geocoder = [CLGeocoder new];

    //对应经纬度的详细信息(addressDictionary)
    [geocoder reverseGeocodeLocation:location completionHandler:^(NSArray *placemarks, NSError *error) {
        if (error == nil) {
            for (CLPlacemark *placemark in placemarks) {
                NSLog(@"longitude:%f; latitude:%f; addressDictionary:%@", placemark.location.coordinate.longitude, placemark.location.coordinate.latitude, placemark.addressDictionary);
            }
        }
    }];
}

转载于:https://my.oschina.net/zyboy/blog/617422